TY - GEN
T1 - A new competitive ratio for network applications with hard performance guarantees
AU - Deng, Han
AU - Hou, I. Hong
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/16
Y1 - 2016/11/16
N2 - Network applications in highly mobile systems need to employ online algorithms that do not rely on precise predictions about future events. In order to meet hard performance guarantees in the presence of unknown future events, common practice is to add redundancy to the systems. In this paper, we define a new competitive ratio that reflects the amount of redundancy needed to ensure some given performance guarantees. We study two special applications, namely, online job allocations in cloud computing and online scheduling in delayed mobile offloading, and propose online algorithms for each of them. We prove that our algorithms are optimal. By comparing our algorithms with commonly used other policies, we also show that our policies need much less redundancy than those commonly used policies to provide the same degree of performance guarantees.
AB - Network applications in highly mobile systems need to employ online algorithms that do not rely on precise predictions about future events. In order to meet hard performance guarantees in the presence of unknown future events, common practice is to add redundancy to the systems. In this paper, we define a new competitive ratio that reflects the amount of redundancy needed to ensure some given performance guarantees. We study two special applications, namely, online job allocations in cloud computing and online scheduling in delayed mobile offloading, and propose online algorithms for each of them. We prove that our algorithms are optimal. By comparing our algorithms with commonly used other policies, we also show that our policies need much less redundancy than those commonly used policies to provide the same degree of performance guarantees.
UR - http://www.scopus.com/inward/record.url?scp=85004000439&partnerID=8YFLogxK
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U2 - 10.1109/SPCOM.2016.7746696
DO - 10.1109/SPCOM.2016.7746696
M3 - Conference contribution
AN - SCOPUS:85004000439
T3 - 2016 International Conference on Signal Processing and Communications, SPCOM 2016
BT - 2016 International Conference on Signal Processing and Communications, SPCOM 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th International Conference on Signal Processing and Communications, SPCOM 2016
Y2 - 12 June 2016 through 15 June 2016
ER -